H12-891_V1.0 Exam Questions

Which of the following is WRED's drop probability for packets exceeding the high threshold?

As shown in the figure, IPv6 is deployed in a campus for business testing. There are 4 routers in the network, running OSPFv3 to realize network interconnection. Which of the follo...

When troubleshooting the problem that the same VLAN cannot communicate with each other, which of the following methods is not necessary?

In 6PE networking scenarios, data packets usually carry two layers of label information when forwarded by PE. The inner label information is allocated by which of the following pro...

Which of the following descriptions of OSPFv3 Router ID is correct?

In a broadcast network, if the DR priority of the interconnection interfaces of two routers is set to 0, which state will the OSPF neighbor stay in?

In the VXLAN network, which of the following is used to implement traffic access to the VXLAN network and can also be used to communicate with the same subnet within the same VXLAN...

In the design of network access control in large and medium-sized campuses, when a PC terminal is connected to an IP phone, which of the following authentication methods can be sel...

As shown in the figure, R1 and R2 establish a GRE tunnel. If it is required that R1 "ping10.3.1.1" can ping successfully, which of the following commands needs to be configured on...

Which of the following descriptions about AH (Authentication Header, Packet Authentication Header Protocol) is wrong?

On a router IPv6 SR-Policy routing information. Which of the following does [10] mean?

OSPF supports SR-MPLS through which of the following types of LSAs?

When using Huawei iMaster When NCE-IP configures a SRMPLSTE tunnel, which of the following protocols does the controller use to collect network topology information?

SRv6 (SegmentRoutingIPv6) is a technical architecture designed to forward data packets on IPv6 networks based on the source routing concept. Which of the following descriptions is...

As shown in the figure, Site1 and Site2 need to achieve mutual access through the operator's BGP/MPLSIPVPN. It is known that the public network tunnel between PE1 and PE2 has been...

The network administrator is trying out ACL and only wants to match the four routing entries with Num numbers 1, 3, 5, and 7 in the figure. How many ACL rules does the network admi...

Man-in-the-middle attacks or IP/MAC Stooting attacks can lead to information leakage and other hazards, and are relatively common on intranets. Which of the following is a configur...

In the MPLS network, there are different types of operations for labels. Which of the following represents the meaning of the "pop" action?

Configure ISISIPv6cost50 directly under the interface. Which of the following does this command mean?

An engineer used two routers to conduct IPv6 service testing and simulated the interconnection between the headquarters and branches by running BGP4+. As shown in the figure, an en...

A company's headquarters network and branch network are interconnected through the Internet. If you want to use VPN technology to achieve safe and reliable data transmission betwee...

Via iMaster in the virtualized campus network scenario deployed by NCE-Campus, after creating a VN, you also need to configure VN interworking. Which of the following descriptions...

As shown in the figure, SW1 and SW2 use asymmetric IRB forwarding. When PC1 communicates with PC2, which of the following is the destination MAC address of the original data frame...

The output information of a certain router is as shown in the figure. Which item is wrong in the following description?

VPDN refers to a virtual private network built on a public network. Which of the following belongs to VPDN?

As shown in the figure, a certain L3VPN Over SRv6BE networking is used. PE1 and PE2 pass the BGP neighbor relationship through the loopback0 interface. If you want to realize the i...

According to different implementation levels, wide area VPN can be divided into L2VPN and L3VPN. Which of the following descriptions of wide-area VPNs is wrong?

If you want to implement L3VPNv4 over SRv6 BE, you need to execute the segment -routing ipv6 best-effort command in which of the following command views?

The message information of the VLAN configuration delivered by the NETCONF protocol is as follows. Which of the following descriptions is wrong?

Which of the following description of ABR in OSPF is wrong?

Which of the description of LSA is correct?

Which of the following OSPF areas can only reach other areas through the default route?

Which of the following descriptions of OSPF packets is wrong?

Which of the following types of LSAs can carry tag information for external routes?

In which of the following situations will a router running IS-IS not generate LSPs?

A router is running ISIS, and its output information is as shown in the figure. Which of the following statements is wrong?

Which of the following description of Local-Preference is correct?

Which of the following is about display bgp routing The correct description of the content output by the table command?

Regarding the summary automatic command and the description of BGP aggregation, which of the description is wrong?

Filterpolicy2000export is configured in the IS-IS process. Which statement is wrong about the function of this command?

The following is part of the output configuration of the Huawei router. Which of the description of this part of the configuration is correct? [Huawei] ip ip-prefix P1 index 5 deny...

Which of the following statements about stacked MAD detection is wrong?

As shown in the figure, in a network running the RSTP protocol, the original root port of the SWC fails and the port is in Down state. At this time, which of the following processe...

As shown in the figure, R1 is configured. Which of the following descriptions of IS-IS process 1 is correct?

The output information of a certain router is as shown in the figure. Which item is wrong in the following description?

All routers in a network enable SR-MPLS, and R1 encapsulates the label information of a data packet as shown in the figure. Which of the following MPLS labels does the data packet...

R1, R2, and R3 enable SR-MPLS based on IS-IS. By default, which of the following is the outgoing label of the R1 device when it reaches 10.0.3.3? (The prefix sid of 10.0.3.3 is 100...

Which of the following protocols does SR-MPLS TE use to allocate MPLS labels?

After configuring the command as shown in the figure on a router, which of the following is the value range of the static SID under the locator?

SR-MPLS Policy can use BGP extensions to transmit tunnel information, as shown in the figure. Among them, which of the following parameters does SR-MPLS Policy rely on for optimiza...